Collapsible sled



M. BROWN.

COLLAPSIBLE SLED.

APPLICATION FILED NOV. 10. m9.

Patented July 12, 1921.

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M. BROWN, COLLAPSIBLE SLED.

APPLICATl-ON FILED NOV- I0, 1919.

Patented July 12, 1921. m3 SHEETS-SHEET 2.

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JZwx' fair/It M. BROWN. COLLAPSIBLE SLED.

APPLICATION FILED NOV. 10. 1919.

Patented July 12; 1921.

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, cjoL'LaPsIBL E SLED.

To all whom it may concern." 7 I.

Be it known that I, MAxBRowN, a c tizen of the United States, and a resident of the.

city of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Collapsible Sleds, of which the following is a specification.

My invention relates to improvementsin collapsible sleds, and has. for its object the provision of an improved constructlon of this character which is adapted to be folded into compact form, and which is durable and efficient in use, the present invention constituting an improvement over'that disclosed in my prior application; Serial No. 229,046,

filed April 17, 1918.

Other objects will appear hereinafter. I

The invention consists in the combinations and arrangements of parts hereinafterdescribed and claimed. Q

The invention will be best'understood by reference to the accompanying'drawings' forming a part of this specification, and m which, 3

Figure 1, is a top plan view of a, 'collapsible sled embodying the invention, 1

Fig. 2, a side view of the same, Fig. 3, aside view showing the sled collapsed and secured in collapsed form,

Fig. 4, a longitudinal section'ofthe sled showing the parts in an intermediate position during the folding or collapsing opera-- tion,

Fig. 5, an enlarged detail view of a knee joint arrangement employed in the construction, k

Fig. 6, a section taken on line 6,'6 of 1g. Fig. 5,

Fig. 8, a section taken on line 8-8 of Fig. 5

Fig. 9, a detail view illustrating a latch arriangement employed in the constructlon, an

Fig. 10, a side view corresponding with Fig. 9.

The preferred form of construction, as illustrated in the drawings, comprises side angle bars 8 and angle runners 9 positioned thereunder and collapsibly connected thereto by means of foldable links 10 pivoted to the angle bars and the runners and to each other, forming knee joints, there being two sets of said links connecting each side bar with its corresponding runner. Each of said links 7, a section itaken on line 7-7 of together, as indicated in Fig. 3.

I Spe ification of Let tersratent. Patented. July 12, 1921. Application filed November 10, "191 9. Serial No. 337,092. I i

-' 10 is pivoted'to the corresponding side' bar and runner, and the'members of 'each'pair' of links are. pivoted together at the point 11, a

as shown. Each link is provided with a shoulder 12 adapted to contact with the corresponding side bar or runner to limitthe outward swing or mo'vementvthereof, and

with a'lug orear 13 adapted to contact with aslmil'ar lug or ear on the other link, also'to limit the outward swing thereof and stiffen and strengthen the construction. Each of the links 10 is also provided with a catch 10 adapted and'arranged to automatically and yieldingly interlock with the corresponding catch on the other corresponding link whensaid links areswungoutwardly and thus yieldingly hold the sled in distended form. By this arrangement, it will beobserved that The opposite sets of links 10 have. their 7 pivotal joints" 11- connected by links 14, which are pivotally connected, at their inner ends, and each pair of which is provided with a lug 15 'adapted to engage a notch 16 to limit the swing of said links and form 'a kneejoint between the opposite sets of links 10,and which, when the side. bars 8 are col lapsed onto the runners 9, assume horizontal and parallel positions and may then be read- 5 ily broken orswung outwardly to permit of the approach of the opposite side bars and runners, as indicated in Fig. 3. A spring held latch 15 is also provided on each pair of links 14 and arranged and adapted to automatically engage the corresponding lug 15 and lock the same in its corresponding lug 16, thereby further stiffening and strengthening the construction. Each latch 15 is provided with a finger piece 16 by means of which the same may be released when it is desired to fold or collapse the ting of the'collapsing'or folding of the side" bars onto the runners'when desired.

sled. In like manner, the side bars 8 are connected by a similar set of links 17, identical in all respects with the links 14, and likewise provided with latches 15, and whereby said side bars may be readil folded y this arrangement, it will be observed that after 7 the side bars havebeen folded onto the runners, the opposite side bars and runners may be again folded onto each other, thus 8 and the other ends equipped with metallic plates having key-hole slots 21 therein,

adapted to engage studs 22 on the other side bar 8, as shown. Longitudinal slats 23 are securedlto the bands 20,.constituting the top ofthe sled, and a strap 24, having a buckle 25, is arranged oneach band under the slats 23. Bythis arrangement, it will be observed that when the frame of the sled has been collapsed and folded, as above described, the foldabletop of the sled may be readily folded about said frame and secured in placeby means of straps 24 and buckles-25. It will also be observed that a sled is thus provided which maybe readily collapsed and folded into compact form, or readily distended into usable form, and which is strong and eflicient in use.

, While Iliave illustrated and described the preferred form of construction for carrying my invention into effect, this is capable of variationand modification without departing from. the s irit of theinvention. I therefore, do not wish to belimited .to theprecise details of construction set forth,.but desire to avail myself of such variations and modificas tions as come within the scope of the appended claims. v H

Havin described my invention, what I claim as'new and desire to secure by Letters Patent is 2- 1. A sled comprising a collapsible frameconsisting of longitudlnal bars; a plurality v of knee joint connections between said bars,- each consistingof two links pivoted to each other and to said bars, one of said links being provided with a lug, there being a notch in the other link toreceive said lug and inter-' lock therewith to'prevent further bending of b said knee joint; and a spring held catch arranged on said other link and adapted to engage said. lug to hold the same in said notch, "substantially as, described.

V 2L A sled comprising a collapsible frame consisting of longitudinal bars;- a plurality of knee joint connections between said bars,

each consisting of two'links pivoted to each other and to said bar's,-one of said linksbeing provided with a lug, there being, a notch in the other link to receive saidlug and inter lock "therewith to prevent further bending of said knee joint; and a spring-held catch mounted on saidother link andadapted and,

arranged to automatically interlock with;

said lug to hold said lug in said notch, sub

stantially as described.

3. A sled comprising a collapsible frame '1 consisting of longitudinalbars; aplurality of knee joint connections between said bars, each consisting of two linkspivotedtoeach.

other .and-to said bars; and interlocking catcheson said links arranged to. automati 1 cally engage with an'ddisengage from each;

other, and yieldingly holdsaidlinks in distended form, substantially as 7 described;

' .4, A sledcomprising a collapsible frame consisting of longitudinal bars; aplura-lity; I

of knee joint connections between said bars,

each consisting of' two linkspivotedto each other and to said bars interlocking catches on said links arranged to automatically en-V.

gage with each other and yieldingly hold said links in distended form, and stop shouh;

ders on saidlinks arranged, to engage and limit the movement of said links afterau-" 7 tomatic engagementbetween said catches, substantially asdescribed.-

In testimony whereof. 'IQhave signed "my name tothis-specification in the presenceof two subscribing 1 witnesses.

Witnesses: I 1 i JO R iem, BRAYTON G. RICHARDS;

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